First brake job since new now has 120,000 miles.
Six months ago 6,000 miles, I replaced front rotors GM and rear drums. Best that Napa sells. Pads and shoes from GM 35% off. Used Brake grease where needed.
Bled all lines everything perfect, except for trip from Phoenix to Flagstaff only at 5% grade downhill, brakes pulsate at moderate braking, speeds 65 to 85 mph. Vibration goes away if I release brake pedal. Original Arizona truck, no rust or corrosion.
1.) Where do I start for diagnosing, turn drums and rotor?
2.) Will this get worse where it will happen on level surfaces?
have the same problem?
Saturday, August 20th, 2016 AT 5:15 PM